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RedHat 9 (Linux i386) - man page for qcanvasellipse (redhat section 3qt)

QCanvasEllipse(3qt)							      QCanvasEllipse(3qt)

NAME
       QCanvasEllipse - Ellipse or ellipse segment on a QCanvas

SYNOPSIS
       #include <qcanvas.h>

       Inherits QCanvasPolygonalItem.

   Public Members
       QCanvasEllipse ( QCanvas * canvas )
       QCanvasEllipse ( int width, int height, QCanvas * canvas )
       QCanvasEllipse ( int width, int height, int startangle, int angle, QCanvas * canvas )
       ~QCanvasEllipse ()
       int width () const
       int height () const
       void setSize ( int width, int height )
       void setAngles ( int start, int length )
       int angleStart () const
       int angleLength () const
       virtual int rtti () const

   Protected Members
       virtual void drawShape ( QPainter & p )

DESCRIPTION
       The QCanvasEllipse class provides an ellipse or ellipse segment on a QCanvas.

       A canvas item that paints an ellipse or ellipse segment with a QBrush. The ellipse's
       height, width, start angle and angle length can be set at construction time. The size can
       be changed at runtime with setSize(), and the angles can be changed (if you're displaying
       an ellipse segment rather than a whole ellipse) with setAngles().

       Note that angles are specified in 16ths of a degree.

       <center>
					    [Image Omitted]

       </center> If a start angle and length angle are set then an ellipse segment will be drawn.
       The start angle is the angle that goes from zero in a counter-clockwise direction (shown
       in green in the diagram). The length angle is the angle from the start angle in a counter-
       clockwise direction (shown in blue in the diagram). The blue segment is the segment of the
       ellipse that would be drawn. If no start angle and length angle are specified the entire
       ellipse is drawn.

       The ellipse can be drawn on a painter with drawShape().

       Like any other canvas item ellipses can be moved with move() and moveBy(), or by setting
       coordinates with setX(), setY() and setZ().

       Note: QCanvasEllipse does not use the pen.

       See also Graphics Classes and Image Processing Classes.

MEMBER FUNCTION DOCUMENTATION
QCanvasEllipse::QCanvasEllipse ( QCanvas * canvas )
       Constructs a 32x32 ellipse, centered at (0, 0) on canvas.

QCanvasEllipse::QCanvasEllipse ( int width, int height, QCanvas * canvas )
       Constructs a width by height pixel ellipse, centered at (0,0) on canvas.

QCanvasEllipse::QCanvasEllipse ( int width, int height, int startangle, int angle, QCanvas *
       canvas )
       Constructs a width by height pixel ellipse, centered at (0,0) on canvas. Only a segment of
       the ellipse is drawn, starting at angle startangle, and extending for angle angle (the
       angle length).

       Note that angles are specified in <small><sup>1</sup>/<sub>16</sub></small>ths of a
       degree.

QCanvasEllipse::~QCanvasEllipse ()
       Destroys the ellipse.

int QCanvasEllipse::angleLength () const
       Returns the length angle (the extent of the ellipse segment) in 16ths of a degree.
       Initially this will be 360 * 16 (a complete ellipse).

       See also setAngles() and angleStart().

int QCanvasEllipse::angleStart () const
       Returns the start angle in 16ths of a degree. Initially this will be 0.

       See also setAngles() and angleLength().

void QCanvasEllipse::drawShape ( QPainter & p ) [virtual protected]
       Draws the ellipse, centered at x(), y() using the painter p.

       Note that QCanvasEllipse does not support an outline (pen is always NoPen).

       Reimplemented from QCanvasPolygonalItem.

int QCanvasEllipse::height () const
       Returns the height of the ellipse.

int QCanvasEllipse::rtti () const [virtual]
       Returns 6 (QCanvasItem::Rtti_Ellipse).

       See also QCanvasItem::rtti().

       Reimplemented from QCanvasPolygonalItem.

void QCanvasEllipse::setAngles ( int start, int length )
       Sets the angles for the ellipse. The start angle is start and the extent of the segment is
       length (the angle length) from the start. The angles are specified in 16ths of a degree.
       By default the ellipse will start at 0 and have an angle length of 360 * 16 (a complete
       ellipse).

       See also angleStart() and angleLength().

void QCanvasEllipse::setSize ( int width, int height )
       Sets the width and height of the ellipse.

int QCanvasEllipse::width () const
       Returns the width of the ellipse.

SEE ALSO
       http://doc.trolltech.com/qcanvasellipse.html http://www.trolltech.com/faq/tech.html

COPYRIGHT
       Copyright 1992-2001 Trolltech AS, http://www.trolltech.com.  See the license file included
       in the distribution for a complete license statement.

AUTHOR
       Generated automatically from the source code.

BUGS
       If you find a bug in Qt, please report it as described in
       http://doc.trolltech.com/bughowto.html.	Good bug reports help us to help you. Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at
       $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is
       provided as a convenience for those users who prefer man pages, although this format is
       not officially supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.
       Please include the name of the manual page (qcanvasellipse.3qt) and the Qt version
       (3.1.1).

Trolltech AS				 9 December 2002		      QCanvasEllipse(3qt)


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